91 static inline const int16_t *fir16_create(struct fir16_state_t *fir,  in fir16_create()  argument
94 	fir->taps = taps;  in fir16_create()
95 	fir->curr_pos = taps - 1;  in fir16_create()
96 	fir->coeffs = coeffs;  in fir16_create()
98 	fir->history = kcalloc(2 * taps, sizeof(int16_t), GFP_KERNEL);  in fir16_create()
100 	fir->history = kcalloc(taps, sizeof(int16_t), GFP_KERNEL);  in fir16_create()
102 	return fir->history;  in fir16_create()
105 static inline void fir16_flush(struct fir16_state_t *fir)  in fir16_flush()  argument
108 	memset(fir->history, 0, 2 * fir->taps * sizeof(int16_t));  in fir16_flush()
110 	memset(fir->history, 0, fir->taps * sizeof(int16_t));  in fir16_flush()
114 static inline void fir16_free(struct fir16_state_t *fir)  in fir16_free()  argument
116 	kfree(fir->history);  in fir16_free()
146 static inline int16_t fir16(struct fir16_state_t *fir, int16_t sample)  in fir16()  argument
150 	fir->history[fir->curr_pos] = sample;  in fir16()
151 	fir->history[fir->curr_pos + fir->taps] = sample;  in fir16()
152 	y = dot_asm((int16_t *) fir->coeffs, &fir->history[fir->curr_pos],  in fir16()
153 		    fir->taps);  in fir16()
159 	fir->history[fir->curr_pos] = sample;  in fir16()
161 	offset2 = fir->curr_pos;  in fir16()
162 	offset1 = fir->taps - offset2;  in fir16()
164 	for (i = fir->taps - 1; i >= offset1; i--)  in fir16()
165 		y += fir->coeffs[i] * fir->history[i - offset1];  in fir16()
167 		y += fir->coeffs[i] * fir->history[i + offset2];  in fir16()
169 	if (fir->curr_pos <= 0)  in fir16()
170 		fir->curr_pos = fir->taps;  in fir16()
171 	fir->curr_pos--;  in fir16()
175 static inline const int16_t *fir32_create(struct fir32_state_t *fir,  in fir32_create()  argument
178 	fir->taps = taps;  in fir32_create()
179 	fir->curr_pos = taps - 1;  in fir32_create()
180 	fir->coeffs = coeffs;  in fir32_create()
181 	fir->history = kcalloc(taps, sizeof(int16_t), GFP_KERNEL);  in fir32_create()
182 	return fir->history;  in fir32_create()
185 static inline void fir32_flush(struct fir32_state_t *fir)  in fir32_flush()  argument
187 	memset(fir->history, 0, fir->taps * sizeof(int16_t));  in fir32_flush()
190 static inline void fir32_free(struct fir32_state_t *fir)  in fir32_free()  argument
192 	kfree(fir->history);  in fir32_free()
195 static inline int16_t fir32(struct fir32_state_t *fir, int16_t sample)  in fir32()  argument
202 	fir->history[fir->curr_pos] = sample;  in fir32()
203 	offset2 = fir->curr_pos;  in fir32()
204 	offset1 = fir->taps - offset2;  in fir32()
206 	for (i = fir->taps - 1; i >= offset1; i--)  in fir32()
207 		y += fir->coeffs[i] * fir->history[i - offset1];  in fir32()
209 		y += fir->coeffs[i] * fir->history[i + offset2];  in fir32()
210 	if (fir->curr_pos <= 0)  in fir32()
211 		fir->curr_pos = fir->taps;  in fir32()
212 	fir->curr_pos--;  in fir32()